The iPad “iPad” could not be updated. An unknown error occurred (4013).

In using the suggestions in these two post .. I was able to restore back to iOS 15.7 from the mess of iOS iPad 16. Thanks so much to users applegoingdownhill & norweg

Nobody in sr tech support through cases or Genius Bar could fix I was told to replace the iPad. Thanks to this user community my iPad is up & running again.

Cannot restore, update, or unlock iPad. N… - Apple Community

It says there is not enough memory availa… - Apple Community

Click here and follow the instructions. If they don't fix it, use the 'contact us' link.

(227409)

after trying the troubleshoot tips the apple tech thinks it maybe an internet upload issue. Even with changing out modem I can't get the speed he is saying is needed. Why apple ??